Guide for Internet Explorer

1. Open Tools > Internet Options
   
2. Open Connections > LAN Settings
   
3. Choose: Use a proxy server for your LAN...
   Enter proxy server address,
   choose Advanced
   
4. Add:

172.16.0.0/12; cp.campusnet.ee; chosen_authentication_address

Chosen authentication address should be the same address that opens when the web browser is launched. This may be for example www.ee.